<template>
  <div class="todo-container">
    <div class="todo-wrap">
      <Header :todos="todos" :addTodo="addTodo"/>
      <List :todos="todos" :deleteTodo="deleteTodo" :updateTodo="updateTodo"/>
      <Footer :todos="todos" :updateAll="updateAll" :clearAllDone="clearAllDone"/>
    </div>
  </div>

</template>

<script>
import Header from "./components/Header";
import List from "./components/List";
import Footer from "./components/Footer";

export default {
  name:'App',
  components: {Footer, List, Header},
  data() {
    return {
      todos: [
        {id: "001", name: '爬山', done: true},
        {id: "002", name: '游泳', done: false},
        {id: "003", name: '跑步', done: true},

      ]
    }
  },
  methods: {
    //增加一个todo
    addTodo(todoObj) {
      this.todos.unshift(todoObj)
    },
    //删除一个todo
    deleteTodo(id) {
      this.todos = this.todos.filter(t => {
        return t.id != id//传过来的id和todos的id不一致在收集到todos里展示到页面中
      })
    },
    //更新一个
    updateTodo(id, done) {
      this.todos = this.todos.forEach(todoObj => {
        if (todoObj.id === id) todoObj.done = done
      })
    },
    //更新所有
    updateAll(done) {
      this.todos.forEach(item => {
        item.done = done
      })
    },
    //清除已完成的
    clearAllDone() {
      this.todos = this.todos.filter((t) => {
        return !t.done
      })
    }
  }
}
</script>
<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}

.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}


</style>
